Quick-Start


This document contains a short howto for powering up a SoM with a SoM-100ES carrier and seeing some results.

Obtaining the materials

 

To perform this quick-start you will need the following components

SoM Module (SoM-400M, SoM-5282M, or SoM-400EM)

SoM-100ES Carrier

Power Supply (wall mount or PC)

10 Jumpers (supplied with SoM-100ES)

DB9 serial port cable (for terminal connection)

CAT5 cable (for network connection)

 

Connections

For this simple example, we connect the SoM module, a serial port terminal, ethernet, and power.

 

Step 1. Module Insertion

Insert the SoM into the SODIMM socket of the SoM-100ES.

The module should fit snugly into the socket, and snap down with a click, locking the two side tabs in place

 

 

 

 

Step 2. Serial Port Connection

Connect a serial port to COM1. This should use a standard serial

Cable (not a null modem cable). For communication with normal serial

Terminals the DTR_RESET jumper (located behind and slightly to the right of

COM1) should be set to “OFF”. The other end of the terminal should be connected to a PC or ASCII terminal for initial bring up of the board.

 

 

 

Step 3. Ethernet Connection

A network connection may be established by connecting the carriers Ethernet

Jack to a standard 10/100 base-T network. If the jack is connected directly to a PC a crossover cable should be used. If the board is connected to a router or switch, standard CAT5 should be used.

 

 

 

 

 

Step 4. Power

Power can be applied to the SoM system using either the wall mount connector or standard PC power supply jack.

 

Depending on the desired configuration, the power supply jumper (JP3) must be set appropriately.

JP3 has to settings, which are labeled on the silkscreen as 5V and reg.

If 5V is selected, the board will be powered directly from the voltage applied across the standard 5V and GND terminals of the PC connector. From a power management standpoint, this is the most efficient way of powering the board.

If REG is selected, the boards power comes in through the 12V supply line of the PC connector, or over the Wall Mount connector (9V) this supply is then regulated down to 5V. This method of powering the board is less efficient but allows the use of smaller, cheaper power supplies.

Setting up a Terminal

Unless your network provides DHCP service and you have some way of dynamically locating the board on the network, you will need to establish a serial connection to initially establish communications with the board.

For this any terminal program can be used (Hyperterminal is the most common for Windows).

The following settings should be used for connection:

BAUD 115200

BITS 8

PARITY none

Line feeds - off

 

Apply power to the board (turn on the PC power supply or plug in the wall mount unit).

At this point the OS will load and you should see data scrolling past as it boots.

All SoM boards will then display a login prompt from which a terminal session may be entered if you know the password.

Default Logins

 

Device

Login

Password

SoM-400M

root

tini

SoM-5282M

root

emac_inc